AaronL you are my God This is exactly why I bought the 770. I just took control of iTune on my Powerbook and send some music via airport express to my living room hi-fi. I previously was using Browser tunes through the 770 navigator but man what a difference VNC make !
Thank you, thank you.

PS : is the rendering a bit slow because of the 770 technical limitation or can this be fix by a software upgrade ?

Manu